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进入22世纪,科学家们发现陆地的面积太小了,远远不够人类居住。他们花了五十年时间,开发了另一个区域——海底,建成了一座海底城市。这可是个奇妙而美丽的海底世界呢。你一定想到了人类必不可缺的生存条件——空气。哈哈,你想到的科学家们早就想到了。这里的城市是用纯天然玻璃制成的,这种玻璃则是用人们废弃的报纸、塑料制成的,非常坚固。在它的上方有一个超长的管子通向海面吸取空气,管子的另一种功
Into the 22nd century, scientists found that land area is too small, far from enough for human habitation. They spent 50 years developing another area, the seabed, and built an undersea city. This is a wonderful and beautiful underwater world yet. You must have come to mind the essential condition of human existence - the air. Haha, the scientists you thought long ago came to mind. The city is made of pure natural glass, which is made of newspaper, plastic, and very sturdy. Above it there is an extra length of pipe leading to the sea to draw air and another function of the pipe